Hi,
Low level code is very important in this case, which determines the planning sequence. Please run it first.
The scenario should be supported. When you execute SNP heuristic, what result do you get?
Do you get substitution receipt for product A, and corresponding substitution demand for product B?
Does the system plan for the subsitution demand for product B, and create substiution receipt for it, and the corresponding substitution demand for product C? Does the system plan the substitution demand for product C and create planned receipt for it?
Best Regards,
Ada